Discuss the Advantages and Disadvantages of Converting a Passenger Car with a Petrol Engine to Run on Lng. Which Fuel Will Give More Power Output for the Same Engine?

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How much petroleum is there, and how long will it last? These are straightforward questions, so one might expect them to have straightforward answers. Unfortunately, it is not that simple. As economists and petroleum geologists will tell you, there is always more in the ground than you can extract out, and the percentage of the extraction depends on how hard you want to work, or how much you are willing to pay. Based on present situation, we are using more and more petroleum and finding less and less of it. Indeed, petroleum geologists suggest that we are going to run out of petroleum in the next few decades. Thus, before the world run out of petroleum, we have to discover and think of new alternative energy sources to power vehicles and many more. One of the alternative fuels that has been discovered is natural gas, and it holds some promising benefits. Natural gas deposits are typically found deep under the earth where it is often found in conjunction with oil deposits. Natural gas is made up primarily of methane (CH4) with other trace amounts of ethane, propane, nitrogen, helium, carbon dioxide, hydrogen sulfide and water vapor. Shown below is the typical composition of a natural gas: Methane CH4 70-90% Ethane C2H6 0-20% Propane C3H8 Butane C4H10 Carbon Dioxide CO2 0-8% Oxygen O2 0-0.2% Nitrogen N2 0-5% Hydrogen Sulphide H2S 0-5% Rare Gases He, Xe Trace Natural gas itself isn’t something new in this world, in fact it has been widely used in powering homes, commercial applications and industrial processes. The use of natural gas in transportation has also been introduced for quite some time. Compressed natural gas (CNG) or Liquefied natural gas (LNG) has long been used in stationary engines, but the application of CNG as a transport engines fuel has been considerably advance over the last decade by the development of lightweight high

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